CN1333482A - Emission photoetching method and device using transmitter with pattern - Google Patents
Emission photoetching method and device using transmitter with pattern Download PDFInfo
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- CN1333482A CN1333482A CN01104684A CN01104684A CN1333482A CN 1333482 A CN1333482 A CN 1333482A CN 01104684 A CN01104684 A CN 01104684A CN 01104684 A CN01104684 A CN 01104684A CN 1333482 A CN1333482 A CN 1333482A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001259 photo etching Methods 0.000 title description 2
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 238000001459 lithography Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 37
- 230000007704 transition Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 abstract description 13
- 230000005684 electric field Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/317—Electron-beam or ion-beam tubes for localised treatment of objects for changing properties of the objects or for applying thin layers thereon, e.g. for ion implantation
- H01J37/3174—Particle-beam lithography, e.g. electron beam lithography
- H01J37/3175—Projection methods, i.e. transfer substantially complete pattern to substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/30—Electron or ion beam tubes for processing objects
- H01J2237/317—Processing objects on a microscale
- H01J2237/3175—Lithography
- H01J2237/31777—Lithography by projection
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Analytical Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Electron Beam Exposure (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
提供了一种用带图案的发射器发射光刻的方法和装置。发射光刻的装置中,热电发射器或铁电发射器使用掩模构图然后再加热的。加热时,发射器上被掩模盖住的地方不发射电子,未被掩模盖住的暴露部分发射电子,从而发射器图案的形状被投射到衬底上。为防止被发射电子束的散开,需要平行电子束,用磁铁、直流磁场发生器或是偏转系统来控制该电子束,从而把所需图案精确地1∶1或是X∶1投射刻蚀到衬底上。
A method and apparatus for emission lithography with a patterned emitter is provided. In emission lithography devices, pyroelectric or ferroelectric emitters are patterned using a mask and then heated. When heated, the place covered by the mask on the emitter does not emit electrons, and the exposed part not covered by the mask emits electrons, so that the shape of the emitter pattern is projected onto the substrate. In order to prevent the spread of the emitted electron beam, it is necessary to parallel the electron beam, and use a magnet, a DC magnetic field generator or a deflection system to control the electron beam, so that the desired pattern can be projected and etched accurately 1:1 or X:1 onto the substrate.
Description
The present invention relates to carry out a kind of method and apparatus of emission lithography with patterned transmitter.
A kind of device that uses band pattern transmitter to carry out the Ferroelectric Switching photoetching by connecting a ferroelectric transmitter emitting electrons of being with composition with the electronic corrosion-resistant on the exposure substrate, forms the pattern identical with pattern on the transmitter.The Ferroelectric Switching emission is disadvantageous, and this is because the electrode that forms by mask on transmitter absorbs electronics.Also have, when not receiving on the electrode, transmitter is emitting electrons stably.
In order to address the above problem, feature of the present invention comprises: use the apparatus and method of the emission lithography of the transmitter of being with composition, wherein, and when in a vacuum with infrared ray, laser or heating arrangement heating, thermoelectric transmitter or ferroelectric transmitter emitting electrons.Transmitter is by the mask composition, so that from the electronic corrosion-resistant of transmitter ejected electron exposure on substrate, forms and the identical pattern of pattern on the transmitter.
According to the present invention, a kind of device of emission lithography comprises: one with the be separated by plate transmitter of preset distance of block substrate, this plate transmitter has a required pattern on the surface of faces substrate seat, transmitter is by a kind of thermoelectric material or ferroelectric material forms; A heating source that is used to heat this plate transmitter; And be configured in magnet or dc magnetic field generator transmitter and block substrate outside, that be used for controlling the track of the electronics of launching from plate transmitter.
Preferably, heating source is a kind of remote control heating source that produces infrared ray or laser, and perhaps one makes the contact hot plate that is heated by resistive.The heating source that forms is used for transmitter is heated to phase transition temperature or higher.
A kind of method also is provided, and this method provides a kind of 1:1 projection of emission lithography, comprising: a substrate is exposed to transmitter, and transmitter is having required pattern facing on the surface of block substrate; Between transmitter and substrate, add a voltage, allow electronics launch along the path from the transmitter to the substrate; With the magnet that is configured in transmitter and block substrate outside or the path of dc magnetic field generator control electronics; And add heat emitters.
Further, a kind of device also is provided, be used for the X:1 projection of emission lithography, comprise: one with the be separated by plate transmitter of preset distance of block substrate, this plate transmitter is having a required pattern facing on the surface of block substrate, and transmitter is by a kind of thermoelectric material or ferroelectric material forms; A heating source that is used to heat this plate transmitter; And be placed on a deflection system between transmitter and the substrate, be used to control the path of the electronics of launching from plate transmitter.
Preferably, heating source is a kind of remote control heating source that produces infrared ray or laser, or one makes the contact hot plate that is heated by resistive.Heating source produces enough heats transmitter is heated to phase transition temperature or higher.Deflection system comprises the deflector that is used to make from the deflection of transmitter ejected electron; A magnetic lens that is placed between the deflector, magnetic lens focuses on institute's ejected electron; A diaphragm with holes, this diaphragm pass through the electronics that is focused on by magnetic lens, and the electronics that departs from out from focused electron is filtered.
In addition, also provide a kind of method, be used for the X:1 projection of emission lithography, having comprised: a substrate is exposed to transmitter, and transmitter is being with required pattern facing on the surface of block substrate; Between transmitter and substrate, add a voltage, allow electronics launch along the path from the transmitter to the substrate; Use deflection system control from the path of emitter apparatus to the object that will be etched; And add heat emitters.
The present invention proposes with accessory claim writing materials body.
With reference to the accompanying drawings, Shuo Ming embodiment by way of example, it is more obvious that These characteristics of the present invention and strong point will become.Wherein
Fig. 1 is the schematic cross-section that is used for a kind of device of emission lithography with patterned transmitter, and this device according to the present invention can be finished the 1:1 projection of pattern.
Fig. 2 is the schematic cross-section that is used for a kind of device of emission lithography with patterned transmitter, and this device according to the present invention can be finished the X:1 projection of pattern.
Fig. 3 is a kind of thermoelectric material and the typical phase transition curve of a kind of ferroelectric material when the phase transition temperature.
Carry out in a kind of device of emission lithography with patterned transmitter according to the present invention, a kind of thermoelectric transmitter or ferroelectric transmitter be to use the mask composition and then the heating, so that the part that is covered on the transmitter is emitting electrons not, the not masked expose portion emitting electrons that covers, thus the shape of transmitter pattern is projected onto on the substrate.Because at this moment ejected electron Shu Keneng is not parallel to the path between transmitter and object, but scatter, the picture pattern that transmitter may take place blurs.Fuzzy in order to reduce, control this electron beam with magnet or dc magnetic field generator.Preferably, transmitter is heated to phase transition temperature or higher, so that enough amount of electrons are provided.
As mentioned above, with the ferroelectric transmitter of connection be with what emitting electrons contrasted, the ferroelectric or thermoelectric transmitter of device heating according to emission lithography of the present invention, as shown in Figure 1, in a vacuum, by such as 1 heating of this heating source of infrared ray, laser or well heater the time, a kind of transmitter 3 emitting electrons that form by thermoelectricity or ferroelectric material.Transmitter 3 is composition originally, thereby makes electronics in the part of masked 4 shieldings of transmitter emitting electrons not.And the local emitting electrons that covers at transmitter not masked 4.Like this, the pattern of transmitter is projected onto on the substrate 6.Because may not being parallel, electron beam 7 scatters the picture pattern that may occur bluring.Fuzzy in order to reduce, come controlling electron beam 7 with magnet or dc magnetic field generator (a kind of instrument that can produce D.C. magnetic field as electromagnet or coil).And preferably, transmitter 3 is heated to phase transition temperature Tp or higher, so that enough amount of electrons are provided.
In the 1:1 projection system, emitter structures comprises: be installed in transmitter 3 and mask 4 on the transmitter frame 2, the target that is etched is coated electronic corrosion-resistant 5, substrate 6 is fixed on the block substrate 61 firmly, and this emitter structures is placed between permanent magnet or direct current magnet generator 8 and 8 '.Voltage source 9 is added in (power supply 9 is added on transmitter 3 and the substrate 6 by transmitter frame 2 and block substrate 61) between substrate 6 and the transmitter 3.For electron projection to substrate 6, substrate 6 is used as anode.Transmitter 3 also can be heated by resistive with a heating plate that contacts with transmitter 3 (can realize by transmitter frame 2) by infrared ray or the heating of laser 1 long distance.For example, heating plate can be coated with one deck tantalum (Ta) film or metal oxide film.
In 1:1 deflection system as described in Figure 2, deflector 11, magnetic lens 12 and barrier film 13 are placed in the emitter structures front, emitter structures comprises: be installed in transmitter 3 and mask 4 on the transmitter frame 2, this deflection system is used for reflecting electron beam and forms the pattern that size has been dwindled on substrate 6.Voltage source 9 is added between block substrate 61 and the transmitter frame 2.
Following explanation proposes the principle of operation with the said apparatus emission lithography.When the emitter apparatus that has a mask 4 of composition heats in a vacuum, electron beam 7 not masked 4 part emitting electrons that cover from the transmitter 3.At this moment, power supply 9 is added between transmitter 3 and the substrate 6, thereby forms an electric field.Then, electron beam 7 is directed to substrate 6, and electronic motion can be represented in the vector component of direction of an electric field with a vector component vertical with (being quadrature) that is parallel to direction of an electric field.
As shown in Figure 1, when external magnetic field is added in when being parallel on the direction of an electric field, the motion of spinning of the electronics in electric field and the magnetic field.In other words, an electron motion vector that is parallel to magnetic field causes the motion of electronics parallel magnetic field direction, causes annular (simple harmonic quantity) electron motion perpendicular to the electron motion vector of electric field.Parallel motion combines with circulatory motion and has just become helical motion 7.Like this, helical motion just has one-period.When substrate 6 and transmitter separated the segment distance of multiple of the half wavelength that is equivalent to the helical motion cycle or a wavelength, the pattern of transmitter 3 projected on the substrate 6 exactly in one to one ratio.The principle of 1:1 projection that Here it is.Usually, by regulation voltage (electric field) and definite magnetic field and transmitter and have distance between the substrate of the object that will be etched, obtain pattern accurately.
A kind of method of finishing the 1:1 projection of emission lithography comprises: substrate 6 is exposed to transmitter 3, and transmitter 3 is having required pattern facing on the surface of block substrate 61; Between transmitter 3 and substrate 6 as a voltage, allow electronics along 6 path emission from transmitter 3 to substrate; With the magnet that is configured in transmitter 3 and block substrate 61 outsides or the path of dc magnetic field generator 8 and 8 ' control electronics; And add heat emitters 3.Heating steps can comprise: at least with a kind of heat emitters 3 that adds in infrared ray, laser, the electric resistance heater.Heating steps also can comprise transmitter 3 is heated near phase transition temperature or higher.
As shown in Figure 2, in the X:1 projection, deflector 11 and magnetic lens 12 are placed in the emitter structures front and focus on electron beam that has scattered and the size of dwindling pattern on the transmitter.Film 3 with an aperture is used for clearly throwing the pattern of transmitter to substrate 6.Because in order to dwindle the size of the picture of pattern on the transmitter that forms on the substrate 6, what generally need is small size but not large tracts of land, so emitter structures partly heats.Perhaps, the pattern on the whole transmitter projects on the substrate 6, and the size of the picture of transmitter pattern reduces, and is heated even work as whole emitter apparatus.
Preferably, emitter apparatus is heated near phase transition temperature Tp or higher temperature, obtains enough amount of electrons.For repeating projection, heating and cooling repeatedly.In this case, for obtaining high quantum of output, emitter structures preferably is cooled to more lower slightly than phase transition temperature Tp, is heated to than phase transition temperature Tp and omits height, as shown in Figure 3.This be because, amount of electrons emitted is proportional to spontaneous polarizability from transmitter, spontaneous polarizability changes between minimum operation temperature and phase transition temperature.To the minimum operation temperature, room temperature can be regarded its limit as.But, this not necessarily because phase transition can be finished in the temperature quite higher than room temperature.
The method of finishing the X:1 projection of emission lithography comprises: substrate 6 is exposed to transmitter 3, and transmitter 3 is being with required pattern facing on the surface of block substrate 61; Between transmitter 3 and substrate 6, add a voltage, allow electronics along 6 path emission from transmitter 3 to substrate; Use deflection system control from the path of emitter structures to the target that will be etched; And add heat emitters 3.Heating steps comprises: at least with a kind of heat emitters 3 that adds in infrared ray, laser, the electric resistance heater.In addition, heating steps also comprises transmitter 3 is heated near phase transition temperature or higher.Controlled step can comprise: deflection focuses on institute's ejected electron from transmitter 3 ejected electron with magnetic lens 12, after the focusing, allows institute's ejected electron filter the electronics that drifts about out from the electron focusing path by a barrier film 13.
As mentioned above, carrying out in a kind of device or method of emission lithography at the transmitter with the band composition, a kind of thermoelectric transmitter or ferroelectric transmitter are to use the mask composition.When adding heat emitters, from the masked part that covers of transmitter emitting electrons not, in the not masked expose portion emitting electrons that covers of transmitter, so the shape of transmitter pattern is projected onto on the substrate that has the object that will be etched.Electron beam need be parallel to transmitter and the object that will be etched between the path, open for preventing the ejected electron beam spreading, electron beam can be controlled with a magnet or dc magnetic field generator or a deflection system, thereby finishes 1:1 or X:1 projection.
Example:
The wide pattern of 30 μ m is to obtain under D.C. magnetic field, 4kV Dc bias, the 2.5mm distance in 0.27 tesla.BaTiO
3Transmitter is that to add direct current by the n+Si heating plate by the n+Si plate electrically heated.4kV voltage is added between drip catcher (electronics resist layer) and the heating plate.Transmitter, drip catcher, heating plate, thermocouple are placed in and are used for test in the vacuum tube, and vacuum remains below 2 * 10
-5Holder.An electromagnet is installed in the vacuum tube outside and obtains D.C. magnetic field.
Although the foregoing description is descriptive, clearly from these instructions, does not leave essence of the present invention and just can propose other embodiment.Therefore, this instructions is intended to make the main points of the present invention that those skilled in the art can all embodiment comprise.
Claims (14)
1. one kind provides the device of the 1:1 projection of emission lithography to comprise:
One with the be separated by plate transmitter of preset distance of block substrate, this plate transmitter is having a required pattern facing on the surface of block substrate, transmitter is formed by thermoelectric material or ferroelectric material;
A heating source that is used to heat this plate transmitter; And
Be configured in magnet or dc magnetic field generator transmitter and block substrate outside, that be used to control the track of the electronics of launching from plate transmitter.
2. according to the device of claim 1, wherein heating source is a kind of remote control heating source that produces infrared ray or laser, perhaps a kind of contact hot plate that is heated by resistive that makes.
3. according to the device of claim 1, wherein the heating source of Xing Chenging is used for transmitter is heated to phase transition temperature or higher.
4. the device of an X:1 projection that is used for emission lithography comprises:
One with the be separated by plate transmitter of preset distance of block substrate, this plate transmitter is having a required pattern facing on the surface of block substrate, transmitter is formed by thermoelectric material or ferroelectric material;
A heating source that is used to heat this plate transmitter; And
Be configured in a deflection system between transmitter and the block substrate, be used to control the path of the electronics of launching from plate transmitter.
5. according to the device of claim 4, wherein heating source is a kind of remote control heating source that produces infrared ray or laser, perhaps a kind of contact hot plate that is heated by resistive that makes.
6. according to the device of claim 4, wherein the heating source of Xing Chenging is used for transmitter is heated to phase transition temperature or higher.
7. according to the device of claim 4, wherein deflection system comprises:
Be used to make deflector from the deflection of transmitter ejected electron;
A magnetic lens that is placed between the deflector, this magnetic lens focuses on institute's ejected electron;
A barrier film is used to make the electronics that is focused on by magnetic lens to pass through, and the electronics that drifts about from focused electron is filtered.
8. one kind provides the method for the 1:1 projection of emission lithography to comprise:
A substrate is exposed to a transmitter, and transmitter is having required pattern facing on the surface of block substrate;
Between transmitter and substrate, add a voltage, allow electronics along the path from the transmitter to substrate emission and be added on the substrate;
With the magnetic field that is configured in transmitter and block substrate outside or the path of dc magnetic field generator control electronics; And
Heat this transmitter.
9. method according to Claim 8, wherein heating steps comprises: at least with a kind of heat emitters that adds in infrared ray, laser, the electric resistance heater.
10. method according to Claim 8, wherein heating steps comprises: transmitter is heated near phase transition temperature or higher.
11. the method that the X:1 projection of emission lithography is provided comprises:
A substrate is exposed to a transmitter, and transmitter is being with required pattern facing on the surface of block substrate;
Between transmitter and substrate, add a voltage, allow electronics along the path from the transmitter to substrate emission and be added on the substrate;
Use deflection system control from the path of emitter structures ejected electron to the target that will be etched; And
Add heat emitters.
12. according to the method for claim 11, wherein heating steps comprises: at least with a kind of heat emitters that adds in infrared ray, laser, the electric resistance heater.
13. according to the method for claim 11, wherein heating steps comprises: transmitter is heated near phase transition temperature or higher.
14. method according to claim 11, wherein controlled step comprises: deflection is from the transmitter ejected electron, focus on institute's ejected electron with magnetic lens, after the focusing, allow institute's ejected electron filter the electronics that drifts about out from the electron focusing path by a barrier film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/619,526 | 2000-07-19 | ||
| US09/619,526 US6476402B1 (en) | 2000-07-19 | 2000-07-19 | Apparatus for pyroelectric emission lithography using patterned emitter |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100485441A Division CN100339768C (en) | 2000-07-19 | 2001-02-20 | Method and apparatus for pyroelectric lithography using patterned emitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1333482A true CN1333482A (en) | 2002-01-30 |
| CN1176405C CN1176405C (en) | 2004-11-17 |
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ID=24482261
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011046848A Expired - Fee Related CN1176405C (en) | 2000-07-19 | 2001-02-20 | Emission photoetching method and device using transmitter with pattern |
| CNB2004100485441A Expired - Fee Related CN100339768C (en) | 2000-07-19 | 2001-02-20 | Method and apparatus for pyroelectric lithography using patterned emitter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100485441A Expired - Fee Related CN100339768C (en) | 2000-07-19 | 2001-02-20 | Method and apparatus for pyroelectric lithography using patterned emitter |
Country Status (3)
| Country | Link |
|---|---|
| US (3) | US6476402B1 (en) |
| JP (1) | JP4223699B2 (en) |
| CN (2) | CN1176405C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327295C (en) * | 2002-06-13 | 2007-07-18 | Asml荷兰有限公司 | Lithographic apparatus, device manufacturing method, and device manufactured thereby |
| CN100369195C (en) * | 2003-03-15 | 2008-02-13 | 三星电子株式会社 | Emitter for electronic beam project micromovie system and manufacture thereof |
| CN100421024C (en) * | 2002-09-30 | 2008-09-24 | Asml荷兰有限公司 | Photoetching device and device manufacturing method |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6476402B1 (en) * | 2000-07-19 | 2002-11-05 | Samsung Electronics Co., Ltd. | Apparatus for pyroelectric emission lithography using patterned emitter |
| US7762964B2 (en) * | 2001-12-10 | 2010-07-27 | Candela Corporation | Method and apparatus for improving safety during exposure to a monochromatic light source |
| US7762965B2 (en) * | 2001-12-10 | 2010-07-27 | Candela Corporation | Method and apparatus for vacuum-assisted light-based treatments of the skin |
| US7935139B2 (en) * | 2001-12-10 | 2011-05-03 | Candela Corporation | Eye safe dermatological phototherapy |
| EP1627662B1 (en) * | 2004-06-10 | 2011-03-02 | Candela Corporation | Apparatus for vacuum-assisted light-based treatments of the skin |
| CN1222832C (en) * | 2002-07-15 | 2005-10-12 | 三星电子株式会社 | Electronic photoetching equipment with pattern emitter |
| KR100513720B1 (en) * | 2002-10-22 | 2005-09-07 | 삼성전자주식회사 | Electron projection lithography using secondary electron |
| KR100951729B1 (en) | 2003-03-07 | 2010-04-07 | 삼성전자주식회사 | Electron Beam Focusing Device and Electron Beam Projection Lithography System |
| KR100537506B1 (en) * | 2003-03-14 | 2005-12-19 | 삼성전자주식회사 | Apparatus of electron lithography using a patterned emitter and fabricating method thereof |
| EP1730591B1 (en) | 2004-01-12 | 2011-08-03 | Regents of the University of California | Nanoscale electric lithography |
| US7741615B2 (en) * | 2004-05-19 | 2010-06-22 | The Regents Of The University Of California | High energy crystal generators and their applications |
| US7740651B2 (en) * | 2007-09-28 | 2010-06-22 | Candela Corporation | Vacuum assisted treatment of the skin |
| SG174927A1 (en) * | 2009-04-13 | 2011-12-29 | Applied Materials Inc | Modification of magnetic properties of films using ion and neutral beam implantation |
| ES2569122T3 (en) | 2009-08-07 | 2016-05-06 | The Regents Of The University Of California | Apparatus for producing X-rays for use in imaging |
| US8324783B1 (en) | 2012-04-24 | 2012-12-04 | UltraSolar Technology, Inc. | Non-decaying electric power generation from pyroelectric materials |
| DE102015115713A1 (en) | 2015-09-17 | 2017-03-23 | Hytecon Ag | Apparatus and method for the treatment of fluids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745358A (en) * | 1971-05-10 | 1973-07-10 | Radiant Energy Systems | Alignment method and apparatus for electron projection systems |
| GB2147141A (en) * | 1983-09-26 | 1985-05-01 | Philips Electronic Associated | Electron image projector |
| US5263073A (en) * | 1991-12-20 | 1993-11-16 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Scanning systems for high resolution E-beam and X-ray lithography |
| US5395738A (en) * | 1992-12-29 | 1995-03-07 | Brandes; George R. | Electron lithography using a photocathode |
| US5729583A (en) * | 1995-09-29 | 1998-03-17 | The United States Of America As Represented By The Secretary Of Commerce | Miniature x-ray source |
| US5981962A (en) * | 1998-01-09 | 1999-11-09 | International Business Machines Corporation | Distributed direct write lithography system using multiple variable shaped electron beams |
| US6429443B1 (en) * | 2000-06-06 | 2002-08-06 | Applied Materials, Inc. | Multiple beam electron beam lithography system |
| US6476402B1 (en) * | 2000-07-19 | 2002-11-05 | Samsung Electronics Co., Ltd. | Apparatus for pyroelectric emission lithography using patterned emitter |
-
2000
- 2000-07-19 US US09/619,526 patent/US6476402B1/en not_active Expired - Fee Related
-
2001
- 2001-02-20 CN CNB011046848A patent/CN1176405C/en not_active Expired - Fee Related
- 2001-02-20 CN CNB2004100485441A patent/CN100339768C/en not_active Expired - Fee Related
- 2001-05-29 US US09/865,607 patent/US6740895B2/en not_active Expired - Fee Related
- 2001-06-22 JP JP2001189758A patent/JP4223699B2/en not_active Expired - Fee Related
-
2002
- 2002-08-29 US US10/230,315 patent/US6566666B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327295C (en) * | 2002-06-13 | 2007-07-18 | Asml荷兰有限公司 | Lithographic apparatus, device manufacturing method, and device manufactured thereby |
| CN100421024C (en) * | 2002-09-30 | 2008-09-24 | Asml荷兰有限公司 | Photoetching device and device manufacturing method |
| CN100369195C (en) * | 2003-03-15 | 2008-02-13 | 三星电子株式会社 | Emitter for electronic beam project micromovie system and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1176405C (en) | 2004-11-17 |
| CN100339768C (en) | 2007-09-26 |
| JP4223699B2 (en) | 2009-02-12 |
| US6740895B2 (en) | 2004-05-25 |
| US20020012860A1 (en) | 2002-01-31 |
| US6476402B1 (en) | 2002-11-05 |
| JP2002075858A (en) | 2002-03-15 |
| US20030006381A1 (en) | 2003-01-09 |
| US6566666B2 (en) | 2003-05-20 |
| CN1591190A (en) | 2005-03-09 |
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